[rglovejoy]

John Forbes Nash: "A Beautiful Mind" by Sylvia Nasir

Richard Feynman: "Genius" by James Gleick

"The Passion of Ayn Rand" by Barbara Brandon

"John Adams" and "Truman" by David McCullough

"Lincoln the Unknown" by Dale Carnegie

[mhartl]

I second the recommendation of Genius. It is incredibly rich and stands up well to rereading.